Investor Presentation FY 2020

2021 off to a good start 2021 challenges and opportunities ‣ Good start in 2021 ▸ Overall high demand and good to very good loading ▸ Foundry, logic and image sensors expected to remain strong ▸ Inventory levels of memory chips still on a somewhat elevated level Memory business expected to show positive trend ▸ Increasing units in smartphones and cars combined with higher content will drive mid- to long-term growth Strong Euro headwind on revenues and margins (siltronic perfect silicon solutions Siltronic AG - Investor Presentation FY 2020 March 9, 2021 26 of 32

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